Record-repeating device for phonographs.



I 1 H. DICKRNSON. RECORD REPEATING DEVICE FOR PHONOGRAPHS.

APPLICATION FILED JUNE 19, 1916.

Patented Apr. 8,1919.

3 SHEETS-SHEET I.

INVEN'TOR.

BYMM? I A TTORNEY J. H. DlCKlNSON'.

RECORD REPEATING DEVICE FOR'PHONOGRAPHS.

APPLICATION FILED JUNE 9. 1916.

Patented Apr. 8,1919.

3 SHEETS-SHEET 2.

[NIL/EN TOR.

d mm M A TTORNE V 1. 'mnmxmsow. RECORD REPEATING DEVICE FOR 'P HONOGRAPHS. APPLICATION FILED JUNE 19 I916.

Patented Apr. 8,1919

3 SHEETS-SHEET 3.

A T ORNEYxf INVENTOR;

UNITED STATES PATENT OFFICE.

JOSEPH HUNTER DICKINSON, OF CBANFOBD, NEW JERSEY, ASSIGNOR TO THE AEOLIAN COMPANY, A CORPORATION OF CONNECTICUT.

RECORD-REIPEATING DEVICE FOR PHONOGRAPHS.

To all whom it may concern Be it known that-I, Jossr r HUNTER DICKINSON, a citizen of the United States,

residing at Cranford, in the county of Union and State of New Jersey, have invented eertain new and useful Improvements in Record Repeating Devices for graphs, of which the following is a spec1fication.

My present invention relates to a recordrepeating device for phonographs, the features and advantages of which will be ap parent to those skilled in the art froman understanding of the following description in connection with the drawings showing one of the specific embodiments my invention may take.

In the drawingo, Figure 1 is a plan V ew of a phonograph embodying my invent on, only the rear end of the tone-arm being shown and the turn-table and i'notor-board being removed to show the underlying mechanism; Fig. 2 is an enlarged partial side elevation of said phonograph embodying my invention, the general view-point being that indicated by the arrow designated' II in Fig. .1; Fig. 3 is an enlarged partial elevation from the viewpoint of the arrows III in Fig. 1; Fig. 1 is thesame from the view-point of the arrows IV; Fig. 5 is a diagrammatic view of the electrical circuit; Fig. 6 is an enlarged vertical section partly in elevation on the line VIVI in Fig. 1; and Fig. 7 is the same on the line VIP-VII.

Describing now the devices of the drawingsll indicates the cabinet of the phonograph. 2 the motor-board or shelf, 3 the neck of the horn. ixthe laterally swinging.

and vertically adjustable tone-arm operatively supporting the reproducer 5. 6 is thespring-motor having a shaft 7 carrying a large gear-wheel 8 driving the turn-table shaft 9 through the pinion 10 (Fig. 1). 11 being the record-supporting turn-table. The turn-table shaft i) has the usual gear connection 27 (Fig. 4) with the governor 2t).

12 is an arm extending downwardly from the tone-arm through a slot in the motorboard and thence horizontally. Its free.- end horizontally supports a fiat strip 14. The motor-frame has a pair of depending arms 15 (Figs. 3. 2 and 1) which support an inverted U-shaped frame 16 pivoted theretoat 17. Rigid with this frame 16 is Specification of Letters Patent.

Phono- Patented Apr. 8,1919.

Application filed June 19, 1916. Serial No. 104,424..

a cross-wise sleeve 18 wherein is an axle 19 having a large fr1ct1on-wheel 20 at one end adapted to bear upon and be driven by the gear-wheel 8 of the motor to drive said axle l9 and a small fr1ct1on-wheel'21 on 1ts other end. 22 (Figs. 1 and 2') is an arm I on the cross-bar of the U-shaped frame suitably connected with the core of an electromagnet 23 by which the frame may be tilted into the position shown in Figs. 1, 2 and 3 about its pivots 17 so that its-friction-wheels 20 and 21 are brought into contact respec tively with the face of the motor-wheel 8 and the underside of the strip 14. The result is two-foldfirst the strip 14, arm 12 and tone-arm are lifted to take the soundbox off the record, secondly a driving connection is made between the motor and the strip 14 whereby the latter is caused to travel endwise like a moving platform and to carry with it the tone-arm and repro-' ducer which are thereby returned to a beginning point. on the record for a repetition thereof. 24- is a tension spring having an opposite action on the arm 22 of the tilting frame from the electro-magnet 23, so that when the latter is deenergized, said spring tilts said frame to release the driving connection afforded thereby between the motor and the strip or movable platform l-t, so that the latter together with the reproducer ceases to be driven in return direction across the record, and furthermore is at the same time lowered on to the record to begin a further playing or repetition thereof.

27 designates a pair of normally open electrical contacts supported by the block 28 of insulating material on a sub-shelf or board 29 (Figs. 1 and 2) under the motorboard; and 30 designates a pair of similarly supported but normally closed contacts and 'on the opposite or return side of the tonewith each pair of contacts 27 and 30, so that a description of one set will sutliee for both, as follows :-2-51 (compare Figs. 1, 2, 6 and 7) is a plate secured across a slot 32 1n the siib-shelf29. a part pivoted at one end 34 to the plate 31 and connected at its other end through intermediate insulation. 35 with I the movable contact of the given pair of contacts so that the movement of the said part 33 will act to shift saidmovable contact due to its connection therewith. 36 is a pin projecting up through an enlarged hole in the "plate 31 to provide plenty of clearance and thence with reciprocating fit through a hole in the part 33. This pin 36 has a vertically elongated eye 37 through it, best shown in Fig. 7, through which is inserted a long rod 38 having an up-turned end 39 adapted to be struck. by the arm 12 on the tone-arm to operate the given set of contacts 27 or 30.

Y I This rod 38 is frictionally gripped between the top of said 'eye 37 and the face of the part 33 due to the downward pressure of a leaf-spring 40 secured to the part 33 and pressing downwardly on top of the pin 36,

and by reason of that fact, the movement of said rod will cause a swinging movement of the said pivoted part 33 in the same direction, the. pivoted part shifting the movable contact 27 or 30, as explained above." Next manual or finger means is provided for temporarily releasing said grip of the pin 36 on the rod 38 comprising a tilting lever 41 located intheslot 32 (compare Fig. 6) and pivotally supported by a projection 42 from f the plate 31, one end of said lever underlying the pin 36 and its other end being pivotally connected with the stem 43 extending u through a hole in the motor-board (of. F 2) and provided above saidboard with a i head or button 44. Finally referring again to the longrod 38, this is guided not only by the referred-t0 eye in the pin 36 but also at its other end by a hole in a fixed bearing member 45 (cf. Fig. 1). Further a compression spring 46 surrounds the rod between said fixed bearing member and a collar 47 thereon, whereby the rod is given a tendency to slide endwise against the arm magnet 23 and with athird pair of normally open contacts 49 which are closed by the magnetic attraction of said electro-magnetwhenevcr it is energized, all as shown by the circuits in said Fig. 5. Fig. 1 shows how .the springs 46 on the rods 38 exert their tension on said rods in a direction to-keep the contacts 27 normally open and the con- 30 normally closed. Describing now the mode of operation as 33, thereby releasing the grip on the rod 38,

which is thereupon impelled toward the arm 12 by its spring 46 until its Lip-turned end 39 (of. Figs. 2 and 1) strikes against said arm. The button is then released which antomatically restores the grip or locking con nection between the rod and the part In short, the rod 38 for operating the contacts 27 has been set so as to end the playing of the record and inaugurate the return of the reproducer at the chosen point.

The operator next lifts up the reproducer, returns it across the record and lowers it thereon in the groove chosen for the repetition of the record to begin; and then presses the lower button 44 in Fig. l which results as before in its rod 38 automatically adjusting itself into a position wherein its upturned end is abutting against the arm 12 of the tonearm.

The operator then starts the motor and the record is rotated and plays as usually, until the reproducer in feeding across the record reaches the chosen ending-place, whereupon the arm 12 strikes against the up-turned end 39 of the upper rod 38 in Fig. 1, forcing it slightly endwise sufiiciently to close momentarily the contacts 27 (Fig. 1), whereupon (compare Fig. 5) the battery circuit will be closed through the magnet 23 by way of the wires 50 and 51, which causes said magnet to attract its armature 53 to close the contacts 49, whereupon the current now continues to energize said magnet indefinitely by way of contacts 30, wire 52, I

contacts 49 and back again to the source through wire 51. In short, the described momentary closing of the contacts 27 has resulted in the continued energizing of the magnet 23, which thereupon tilts the frame 16 so as to make the friction-wheel drivingconnection between the motor-wheel 8 and the movable-platform member or strip 14, which latter is thereby lifted to lift the re producer off the record and is then driven iii the direction of returning the reproducer to the starting point on the record. At this point, the arm 12 strikes against the upturned end 39 of the lower rod 38' in Fig. 1 and thereby opens the contacts 30, which instantly breaks the aforesaid circuit which has been keeping the magnet 23 energized, which thereupon drops its armature 53 (cf. Fig. 5) and releases its core 55, so. that the spring 24 (of. Fig. 2) then acts to tilt the frame 16 back into the position wherein its rotary part no longer forms a driving connection between the motor wheel 8 and the part 14, which same act simultaneously permits the part 14 to lower until the reproducer needle'again contacts with the rotating record at the chosen place for the repetition to begin. Thus the record automaticallyreplays itself between any two chosen points and will keep this up indefinitely un-.

til the motor is stopped.

My inventioncombines effectiveness with an advantageous simplicity; and further combines other advantages such as that its devices are adapted to be concealed beneath the top-shelf or deck of the instrument show ing only the two operating buttons 44: on-

either side of the tone-arm.

The electro-magnet is adapted to act as its own dash-pot by making its core 55 slide snugly in a cylinder 54 closed at the bottom and fixed in the center of the magnet. 56,

is a bleed-hole in the wall of the cylinder. Thus when the current is cut off fromthe magnet by the opening of the contacts 30 as described, the dash-pot action on the core controls the release of the reproducer to the record so that it settles down slowly preventing any injury thereto.

What I claim is:

1. In a record-repeating device for phonographs, the combination of a motor, a reproducer supported for adjustment to and.

from playing position and for t 'avel in playing direction across the. record and return, and a releasable driving connection between said motor and the reproducer which when made, returns the reproducer across the recreturns the reproducer across the record,

said connection comp 'ising an elongated member connected wlth said reproducer support and a rotary part adapted to be driven by the motor and to directly contact with and shift said elongated member, and means set into operation by a given travel of the rcpriahu-er in playing direction which moves the reprraluccr otf the record and makes said .driving connection.

3. In a record-re )eating device for phonographs..thc combination of a motor. a reprodu'ccr supported for adjustment to and from playing position and for travel in playing direction across the record and return, and a releasable driving connection between said motor and the reproducer which when made returns the reproducer across the record, said connection comprising a platform connected with the reproducer support and a rotary part adapted to make frictional contact at one end with the face of a rotary .part of the motor and at the other end with said platform.

4. In a record-repeating device for phonographs, the combination of a motor, a reproducer supported for adjustment to and from playing position and for travel in playing direction across the record and re-v turn, a platform rigidly connected with the reproducer support, and a rotary part driven by the motor and adjustable against said platform to take the reproducer out of contact with and return-it across the record.

- 5. In a record-repeating device for phonographs, the combination of a motor, a reproducer supported for adjustment to and from playing position and for travel in 'playing direction across the record and return, a platform rigidly connected with the reproducer support, a rotary part driven by the motor and'adjustable against said platform to take the reproducer out of contact with and return it across the record, and means set into operation by a given travel of the reproducer in playing direction for adjusting the rotary part as aforesaid against the platform.

6. In a record'repeating device for phonographs, the combination of a motor, a reproducer supported for adjustment to and from playing position and for travel in playing direction across the record and return, a platform rigidly connected with the reproducer support, a rotary part driven by the motor and adjustable against said platform. to take the reproducer out of contact with and return it across the record, means set into operation by a given travel of the reproducer in playing direction for adjusting the rotary part as aforesaid against the platform, and means set into operation by a given travel of the reproducer on its return which releases the rotary part from driving the record.

7. In a record-repeating device fo'r phono graphs, the combination of a motor. a reproducer supported for adjustment to and from playing position and for travel in playing direction across the record and return,

a releasable driving connection between said motor and the reproducer which when made, returns the. reproducer across the record, said connection comprising a platform con- 'nectcd with the reproducersupport and a rotary part adapted to be driven by the inotor am to directly contact with and drive said platform, means set into operation ,by a given travel of the reproducer in playing direction which moves the reproducer off the record and makes saiddriving connection, .and means set into operation by a given travel of the reproducer on its return which releases said driving connection and releases the reproducer to the record.

8. In a record-repeating device for phonographs, the combination of a motor, a reproducer supported for adjustment to and from playing position and for travel in playing direction across the record and return, a releasable driving connection between the motor and the reproducer support which connection, when made, returns the reproducer across the record, an electr'o-magnet for moving the reproducer off the record and making said driving connection, means comprising a set of electrical contacts operated by a given travel of the reproducer in playing direction to energize said electromagnet, means for maintaining said electromagnet energized, and means comprising.- another set of electrical contacts operated by a given travel of the reproducer on its return to deenergize said electro-magnet to release said driving connection and to release the reproducer to the record to play the same. I

9. In a record-repeating device forphonographs, the combination of a motor, a reproducer supported for adjustment to and from playing position and for travel in playing direction across the record and return, a releasable driving connection between the motor and the reproducer support which connection, when made, returns the reproducer across therecord, an electro-magnet for moving the reproducer ofi the record and making said driving connection, means comrising a set of electrical contacts operated y a given travel of the reproducer in playing dlIEOlZlOIl to operate contacts to energize said electro-magnet, said last named means further comprising an endwise movable part tending to move against the travel of the reproducer, means which normally grips the endWise movable part and operatively relates it. to said contacts, and manual means for momentarily releasing the grip on said part.

10. In a record-repeating device for a disk-record phonograph, the combination of -a'horizontal motor-board, a motor supported below the board, a turn-table operatively supported above the board, a vertically adjustable laterally swinging tone-arm and reproducer supported thereby, a horizontally disposed platform supported crosswise from the tone-arm below said board and rigidly connected to move with said tone-arm, and

a rotary part driven by the motor and movable against said platform in a direction to raise it and thereby lift the reproducer oil and return it across the record.

1].. In a record-repeating device for a disk-record phonograph, the combination of a horizontal motor-board, a motor supported below the board, a turn-table operatively supported above the board, a vertically adjustable laterally swinging tone-arm and reproducer supported thereby, a horizontally disposed platform supported cross-wise from the tone-arm below said boar and rigidly connected to move with said tone-arm, a rotary part driven by the motor and movable against said platform in a direction to raise it and thereby to lift the reproducer off and return it across the record, contact means located below said board, a part carried by the tone-arm to set said contact means into operation after said tone arm has traveled a given distance in playing di rection, means brought into action by the setting of said contact means into operation for moving the rotary part as aforesaid against the platform, and a finger piece above the board for adjusting the contact means so as to be actuated when the tonearm has reached any given point in playing the record.

12. In a record repeating device for phonographs, the combination of amotor; a reproducer supported for adjustment to and from playing position and for travel in playing direction across the record and return; a platform rigidly connected with the reproducer support; and a single part-initially movable against said platform in a direction to raise it and thereby lift the reproducer out of cont-act with the record and subsequently operated by said motor to shift said platform in av direction to return said reproducer across the record;

13. In a record repeating device for phonographs, the combination of a motor; a reproducer supported for adjustment to and from playing position and for travel in playing direction across the record and return; a platform rigidly connected with the reproducer support; and a single part located beneath said platform movable upwardly against the latter to raise the same and thereby lift the reproducer out of contact with the record, said part and said platform having a subsequent relative longitudinal movement, so as to shift the platform in'a direction to return a reproducer across the record.

In testimony whereof, I have signed my name to this specification this 17th day of June, 1916.

JOSEPH HUNTER DICKINSON.

It is hereby certified that in Letters Patent No. 1,300,135, granted April 8, 1919, upon the applicetion of Joseph Hunter Dickinson, of Cranford, New Jersey, for an improvement in Record-Repeating Devices for Phonographs, anerror appears in the printed specification requiring eorreetion as follows: Page-4, line 41', claim 9, I

strike out the Words fto operate eontaetsfl and that' the said Letters Patent should be read with this correction therein that the seme may conform to the record of the ease in the Patent Oflice.

Signed and sealed this 20th day of May A. D., 1919.'

. we R. F/WHITEHEAD,

v Acting Commissioner of Patents; Cl. 274-15 

